Ronstan Series 100 RB Block, Single Upright Lead Dynamic Dollies Aluminum Tube Less than half the friction

Less than half the friction of the nearest competitor

factory sealed bearing

A - 2 29/32 inch

but also maximizes your comfort when carrying a backpack or equipment

Ronstan Series 100 RB Block, Single Upright Lead Dynamic Dollies Aluminum Tube Less than half the frictionProduct Description Ronstan Series 100 RB Block, Single Upright Lead Product Information Ball Bearing models have Torlon needle rollers for axial loads, and acetal ball bearings for side thrust loads. The self contained alloy sheave packages provide reliable, low friction performance at high loads. The high axial loads are carried by Torlon roller needle bearings, while side thrust loads are taken up by Acetal ball bearings. Features High static and